Construction block



FIG. 1 is a top perspective view of a construction block;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a side elevational view thereof, the other side beingidentical to the shown side;

FIG. 7 is a top perspective view of the design in assembled condition toform a wall; and,

FIG. 8 is a top perspective view of the design in an assembled conditiondifferent from that shown in FIG. 7.

The broken line showing of the other construction blocks in FIGS. 7 and8 is environmental subject matter and forms no part of the claimeddesign.

The ornamental design for a construction block, as shown and described.